d30089b16d
- The output doesn't seem useful. When data is missing the tool
segfaults rather than printing a message.
Bug: 1122182
Change-Id: I46842793e831b02d169f8d3acc4fa82de3f77951
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2521846
Commit-Queue: Nelson Billing <nbilling@google.com>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#824913}
62 lines
1.8 KiB
Python
Executable File
62 lines
1.8 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2019 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Extracts an LLD partition from an ELF file."""
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import argparse
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import subprocess
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import sys
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument(
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'--partition',
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help='Name of partition if not the main partition',
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metavar='PART')
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parser.add_argument(
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'--objcopy',
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required=True,
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help='Path to llvm-objcopy binary',
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metavar='FILE')
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parser.add_argument(
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'--unstripped-output',
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required=True,
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help='Unstripped output file',
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metavar='FILE')
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parser.add_argument(
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'--stripped-output',
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required=True,
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help='Stripped output file',
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metavar='FILE')
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parser.add_argument('--dwp', help='Path to dwp binary', metavar='FILE')
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parser.add_argument('input', help='Input file')
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args = parser.parse_args()
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objcopy_args = [args.objcopy]
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if args.partition:
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objcopy_args += ['--extract-partition', args.partition]
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else:
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objcopy_args += ['--extract-main-partition']
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objcopy_args += [args.input, args.unstripped_output]
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subprocess.check_call(objcopy_args)
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objcopy_args = [
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args.objcopy, '--strip-all', args.unstripped_output, args.stripped_output
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]
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subprocess.check_call(objcopy_args)
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if args.dwp:
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dwp_args = [
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args.dwp, '-e', args.unstripped_output, '-o',
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args.unstripped_output + '.dwp'
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]
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# Suppress output here because it doesn't seem to be useful. The most
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# common error is a segfault, which will happen if files are missing.
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subprocess.check_output(dwp_args, stderr=subprocess.STDOUT)
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if __name__ == '__main__':
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sys.exit(main())
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